Estimation of dumps of Boryslav ozocerite deposit recultivation methods
H. Klepach, G. Krechkivska, L. Iskovych, S. Woloszanska
Ivan Franko State Pedagogical University of Drogobych
33, Shevchenko St., Drogobych 82100, Ukraine
The authors analysed the methods of recultivating edaphotop of new dumps of Boryslav ozocerite deposit (BOD) according to phenological indicators of cultivated plants (Lupinus albus L., Trifolium hybridum L., Dactylis glomerata L., Lolium multiflorum westerwoldicum) and to the number of microbiota. Recultivation was carried out by applying BOD’s edaphotop into prepared plots with the area of 1 m² of different ameliorators (and namely, sewage sludge, compost, humus or sawdust) in an amount of 10 l/m², 20 l/m² or 30 l/m², on which culture plants were seeded. According to the data of 2013 and 2014 it was ascertained that there was the best seed germination, plant growth and development, an authentically high number of microbiota in plots with different contents of humus. It was established that recultivation of BOD’s edaphotop contributes to significant increase in plant productivity as well as microbiota number in the first year with different contents of ameliorators but not sawdust. In the second year plant productivity increases in the most of plots and microbiota number decreases but not with different humus contents, in these plots the number of microorganisms increases, especially when cultivated with T. hybridum.
Keywords: edaphotop, dumps of Boryslav ozocerite deposit, recultivation, phenological indicators of plants, microbiota